Telemetry graph series (1m/1h rollups)

GET

/servers/{server_id}/metrics

curl --request GET \
  --url 'https://api.flotera.com/api/v1/servers/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/metrics?from=2026-07-25T10%3A15%3A30.123456Z&to=2026-07-25T10%3A15%3A30.123456Z&resolution=auto' \
  --cookie __Host-erm_session=<__Host-erm_session>

• Production
• Local Compose

Aggregated series for the server-detail graphs, served from the report cache (report:v1:{tenant}:server-metrics:...) backed by ClickHouse rollups. Ranges over 48 hours read 1h rollups, shorter ranges read 1m. Hot ranges refresh every 60 s; historical ranges are cached longer.

Authorizations

• sessionCookie
• pat

Parameters

Path Parameters

server_id

required

UUID (v7 for new entities; v4 accepted during migration).

string format: uuid

Header Parameters

If-None-Match

string

<= 256 characters

Return 304 Not Modified when the entity tag still matches.

Query Parameters

from

RFC 3339 UTC with microsecond precision.

string format: date-time

Range start (half-open [from, to)). Defaults to to - 24h.

to

RFC 3339 UTC with microsecond precision.

string format: date-time

Range end. Defaults to now.

resolution

string

default: auto

Allowed values: auto 1m 5m 1h

Bucket resolution. auto picks 5m/1h by range length. 1m is a legacy alias of 5m: minute rollups were retired 2026-08-22 and 5m is the finest history grain (04 §3.5).

metric

Array<string>

<= 20 items

Metric names to include (rollup column names, e.g. temperature_c, utilization_pct, power_w, fan_pct, cpu_usage_pct, hashrate). Omit for the default graph set.

gpu_index

integer

<= 127

Restrict GPU-level series to one GPU. Host series are unaffected.

Responses

200

Metric series snapshot.

Media typeapplication/json

Telemetry graph series computed from ClickHouse 1m/1h rollups.

object

generated_at

required

When this snapshot was computed.

string format: date-time

data_as_of

required

Source watermark the snapshot is based on.

string format: date-time

version

required

Snapshot form version (cache-shape version).

integer

stale

required

True when serving stale-while-revalidate data.

boolean

stale_reason

string | null

<= 256 characters

server_id

required

UUID (v7 for new entities; v4 accepted during migration).

string format: uuid

resolution

required

Effective resolution after auto selection.

string

Allowed values: 5m 1h

from

required

RFC 3339 UTC with microsecond precision.

string format: date-time

to

required

RFC 3339 UTC with microsecond precision.

string format: date-time

series

required

Array<object>

<= 200 items

object

metric

required

string

/^[a-z][a-z0-9_]{1,63}$/

scope

required

string

Allowed values: host gpu

gpu_index

Present for scope=gpu series.

integer | null

unit

string | null

<= 16 characters

points

required

Array<object>

<= 5000 items

object

t

required

Bucket start (half-open bucket [t, t+resolution)).

string format: date-time

min

number | null

max

number | null

avg

number | null

p50

number | null

p95

number | null

last

number | null

Example

{
  "generated_at": "2026-07-25T10:15:30.123456Z",
  "data_as_of": "2026-07-25T10:15:30.123456Z",
  "resolution": "5m",
  "from": "2026-07-25T10:15:30.123456Z",
  "to": "2026-07-25T10:15:30.123456Z",
  "series": [
    {
      "metric": "temperature_c",
      "scope": "host",
      "unit": "C",
      "points": [
        {
          "t": "2026-07-25T10:15:30.123456Z"
        }
      ]
    }
  ]
}

Headers

ETag

string

<= 256 characters

Entity tag of the returned snapshot/resource version.

304

Not modified; the cached representation is still valid.

401

Missing/invalid credentials (code=unauthorized).

Media typeapplication/problem+json

RFC 9457 problem document with a stable machine code.

object

type

required

string format: uri

title

required

string

<= 256 characters

status

required

integer

>= 100 <= 599

code

required

Stable machine-readable error code (03 §2.4).

string

Allowed values: unauthorized forbidden csrf_rejected not_found conflict idempotency_conflict validation_failed rate_limited payload_too_large unsupported_agent_version temporarily_unavailable offline_queue_full online_queue_full plan_required server_limit_reached feature_not_entitled account_in_grace account_frozen payment_pending payment_expired payment_amount_mismatch change_already_pending change_already_applied change_effective reserve_not_covered direction_changed

detail

string

<= 2048 characters

instance

string

<= 512 characters

request_id

UUID (v7 for new entities; v4 accepted during migration).

string format: uuid

errors

Array<object>

<= 100 items

object

path

required

JSON Pointer to the offending field.

string

<= 512 characters

code

required

string

<= 64 characters

Example

{
  "type": "https://ermeon.com/problems/validation",
  "code": "unauthorized"
}

403

Authenticated but not permitted. code=forbidden — role/scope mismatch; code=feature_not_entitled — the plan does not include the capability; code=account_frozen — the account is frozen and this operation is declared x-ermeon-frozen: deny. The three are deliberately distinct: only the last one is fixed by a top-up (13 §5.6).

Media typeapplication/problem+json

RFC 9457 problem document with a stable machine code.

object

type

required

string format: uri

title

required

string

<= 256 characters

status

required

integer

>= 100 <= 599

code

required

Stable machine-readable error code (03 §2.4).

string

Allowed values: unauthorized forbidden csrf_rejected not_found conflict idempotency_conflict validation_failed rate_limited payload_too_large unsupported_agent_version temporarily_unavailable offline_queue_full online_queue_full plan_required server_limit_reached feature_not_entitled account_in_grace account_frozen payment_pending payment_expired payment_amount_mismatch change_already_pending change_already_applied change_effective reserve_not_covered direction_changed

detail

string

<= 2048 characters

instance

string

<= 512 characters

request_id

UUID (v7 for new entities; v4 accepted during migration).

string format: uuid

errors

Array<object>

<= 100 items

object

path

required

JSON Pointer to the offending field.

string

<= 512 characters

code

required

string

<= 64 characters

Example

{
  "type": "https://ermeon.com/problems/validation",
  "code": "unauthorized"
}

404

Resource does not exist in this tenant. Foreign identifiers also return 404 (anti-enumeration).

Media typeapplication/problem+json

RFC 9457 problem document with a stable machine code.

object

type

required

string format: uri

title

required

string

<= 256 characters

status

required

integer

>= 100 <= 599

code

required

Stable machine-readable error code (03 §2.4).

string

Allowed values: unauthorized forbidden csrf_rejected not_found conflict idempotency_conflict validation_failed rate_limited payload_too_large unsupported_agent_version temporarily_unavailable offline_queue_full online_queue_full plan_required server_limit_reached feature_not_entitled account_in_grace account_frozen payment_pending payment_expired payment_amount_mismatch change_already_pending change_already_applied change_effective reserve_not_covered direction_changed

detail

string

<= 2048 characters

instance

string

<= 512 characters

request_id

UUID (v7 for new entities; v4 accepted during migration).

string format: uuid

errors

Array<object>

<= 100 items

object

path

required

JSON Pointer to the offending field.

string

<= 512 characters

code

required

string

<= 64 characters

Example

{
  "type": "https://ermeon.com/problems/validation",
  "code": "unauthorized"
}

422

Request failed validation (code=validation_failed), with per-field errors.

Media typeapplication/problem+json

RFC 9457 problem document with a stable machine code.

object

type

required

string format: uri

title

required

string

<= 256 characters

status

required

integer

>= 100 <= 599

code

required

Stable machine-readable error code (03 §2.4).

string

Allowed values: unauthorized forbidden csrf_rejected not_found conflict idempotency_conflict validation_failed rate_limited payload_too_large unsupported_agent_version temporarily_unavailable offline_queue_full online_queue_full plan_required server_limit_reached feature_not_entitled account_in_grace account_frozen payment_pending payment_expired payment_amount_mismatch change_already_pending change_already_applied change_effective reserve_not_covered direction_changed

detail

string

<= 2048 characters

instance

string

<= 512 characters

request_id

UUID (v7 for new entities; v4 accepted during migration).

string format: uuid

errors

Array<object>

<= 100 items

object

path

required

JSON Pointer to the offending field.

string

<= 512 characters

code

required

string

<= 64 characters

Example

{
  "type": "https://ermeon.com/problems/validation",
  "code": "unauthorized"
}